Resilient wheel.



S. C. WALLACE.

RESILIENT WHEEL.

APPLICATION FILED MAR. 29, 1917.

1,259,058., Patented Mar. 12, 1918.

2 SHEETS-SHEET I. d @L L wit-n aoco S. C. WALLACE.

RESILIENT WHEEL.

APPLICATION FILED MAR. 29. I9I7.

1,259.05. Patented Mar. 12, 1918.

2 SHEETS-SHEET 2.

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"snaren f SIDNEY C. WALLACE, 0F CHICAGO, ILLINOIS.

RESILIENT WHEEL.

Specicaiton of Letters Patent.

Patented Mar. 12, 1918.

Application led March 29, 1917. Serial No. 158,354.

To all whom t may concern Be it known that l, SIDNEY C. WALLACE, a citizen of the United States, residing at Chicago, in the county et Cook, State of Illinois, have invented a new and useful Resilient vWheel; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a new and useful wheel, and one ot' the objects of the invention is to provide a series of spokes, each consisting of a cylinder pivoted to the rim of the wheel and having a yieldably mounted piston therein, which, in turn has a yieldable coupling or connection with the hub of the wheel.

A 'further object of the invention is to provide anti-trictienal ball bearings Jfor the yieldably mounted pistons of each Cylinder.

A further object is to provide a device of this kind provided with sectional spokes, one section oi' each spoke having a pivotal connection with the rim, while the other section is rigidly connected to the hub, there being a bowed yieldable spring coupling the two sections.

In practical fields,the details ot construction may necessitate alterations falling within the scope of what is claimed.

ri`he invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings Figure 1 is a view in side elevation of a resilient wheel, 'constructed in accordance with the invention.

Fig.v 2 is a sectional view on line 2--2 of Fig. 1.

Fig. 3 is a view in side elevation showing cylinders of the spokes dispensed with.

Fig. A is a sectional View on line 4 4 of Fig. 3.

Referring more especially to the drawings, 1 designates a hub, and 2 the rim of the wheel. rlhe rim is channeled, as shown, and may receive any suitable tire 3. The rim 2 has an inwardly extending annular iiange 4 and each spoke 5 of the wheel shown in Fig. 1 comprises the cylinder section 6, the piston section 7, and the section 8, which is connected rigidly te the hub 1 by threading the same into a socket 9. The inner end of the piston section 7 has a reduced threaded extension 10 and the outer end of the section 8 is provided with a similar reduced threaded extension 11. The opposite ends of a bowed spring 12 having openings to receive the threaded extensions 10 and 11 of the piston section and the section 8 of each spoke of the wheel, there being nuts 13 threaded on said reduced extensions 10 and l1, to hold the bowed spring securely connected. These reduced extensions 10 and 11, where they engage the opposite ends ot the bowed spring are provided with rectangular parts 14, to prevent turning ot the bowed spring to a position at right angles to the plane of the wheel. Each cylinder section consists of the cylinder 15 and the caps 16 and 17 which caps are threaded on the cylinder 15. The cap 16 is provided with the ears 18, between which the flange et engages, there being a bolt 19 pivotally-connecting said ears to the flange. The cap 17 has a guide opening 20 for the piston section. A suitable bushing 21 is threaded into the cylinder 15 adjacent its inner end, there being anti-frictional ball bearings 22 carried by the bushing, and to be eno-aged by the piston section, which moves telescopically through the guide opening 20 and through the bushing 21. v

interposed between the bushing 21 and the cap 17, is a lling or packing ot felt, waste or the like 23, saturated in some suitable lubricant, thereby keeping the piston 7 lubricated during its movement through the cylinder. Threaded upon the outer end of the piston section, is a piston member 2-1, between which and the inner surface of the cylinder 15, antifrictional ball bearings 25 are interposed. interposed between the piston member 24 and the cap 16, is a coil spring 26, thereby additionally yieldably mounting or holding the piston section. A suitable cotter pin or the like 27 extends transversely of the outer end of the piston section, thereby preventing the piston member 24 from screwing od the outer end of the piston section. rlhe cap 16 is provided with an orifice 28 through which suitable lubricants may be injected into the cylinder section for lubricating the moving parte therein. Arranged in the cylinder section, adjacent the cap 16, is a suitable rubber buffer 29, against which the outer end etl the piston section may contact in order to absorb excessive shock or jar. In Figs. 3

and 4L, the spokes consist of the sections 7a and 8, the adjacent ends of Which-are conl30 pivoted to said flange by .means of the bolts 3l and nuts 32. The Abowed springv couplers 12 are Veach tapered from the .cen-

ter of the arch toward its opposite ends, as shown, thereby strengthening the spring,

Y yet, at the sarne time, allowing thel requisite resiliency. Fro'ni the foregoing, in connecytion with the drawing, it is to be 'seen there has been provided improved yieldable lmeans between the spoke sections.

The invention hayingbeen set forth, what 1s claimed as neuT and useful 1s in a resilient Wheel, the combination of al hub and arirn, of a plurality of spokes connecting the hub andthe rim, eachY spoke consisting of a pair of spoke sections, a yieldable spring Coupler connecting the adjacent ends of the spoke sections, one of said spoke sections being fixed rigidly to the hub, the other spoke section comprising two parts, a cylinder part, pivoted to the rini, and a piston part yieldably mounted in the cylinder part.

name to this vspecification in the presence of two subscribing Witnesses.

SIIDNEY C. WALLACE. Witnesses:

FRITHJOF JOHNSON,

ICHARL-Es RINGER. l

Genial et this patent may he obtained 'for 'nve cents eaehfby addressing the VGommhison'er 1f-Patents,

Washington, ILC.

Intestimon whereof I have signed niv 35 

